Open AccessEffect of Alternating Electromagnetic Activated Water on Properties of Cement Mortar
Author(s) -
Zhifeng Zhang,
Borong Li,
Nan Song,
Lei Zhao
Publication year - 2021
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/634/1/012138
Subject(s) - cement , materials science , mortar , composite material , compressive strength , excitation , electrical engineering , engineering
For cement mixture, water is indispensable and directly affects the performance of cement mixture of raw materials. Based on the research conclusion of alternating electromagnetic field, square wave excitation signal and 50-turn excitation coil were used to activate water through alternating electromagnetic field with different magnetic induction intensity (52.6mT, 97.8mT, 151.2mT, 193.6mT) at different flow rates (0.69m/s, 0.85m/s, 1.05m/s) to explore the effect of activated water on the performance of cement mortar. Through tests, the workability and compressive strength of cement mortar are improved, the water retention is better, and the apparent density is increased. The maximum increase of consistency is 34%, the layering degree is within 20mm, and the compressive strength of 7 th day, 14 th day and 28 th day can be increased by 27.5%, 23.8% and 20.3%.